Finite element simulation of indentation experiments
Finite element simulation of indentation experiments
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DOI：
10.1016/0020-7683(88)90039-x
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发表时间：
1988
影响因子：
3.6
通讯作者：
A. Bhattacharya;W. Nix
中科院分区：
文献类型：
--
作者：
A. Bhattacharya;W. Nix
压痕实验现在被用来在亚微米尺度上研究材料的弹性和塑性特性。这些实验的模拟已经进行了无摩擦和完全粘附接触的条件下，并在增量弹塑性的背景下，使用有限元法。这些模拟结果与实验结果的比较表明，基于连续体的有限元方法有能力确定的负载深度响应的亚微米压痕试验。从模拟曲线的加载和卸载端口可以得到材料的硬度和弹性模量。
Indentation experiments are now being used to study the elastic and plastic properties of materials on a sub-micrometer scale. Simulations of these experiments have been performed using the finite element method under the conditions of frictionless and completely adhesive contact and within the context of incremental elasto-plasticity. Comparison of these simulated results with experimental results demonstrates that the continuum based finite element approach has the capability to determine the load depth response of a sub-micrometer indentation test. It is also shown that the hardness and elastic modules of the can be obtained from the loading and unloading portoins of these simulated curves.